eamon-desktop ~ # emerge ktorrent-2.0_beta1.ebuild
emerging by path implies --oneshot... adding --oneshot to options.

*** emerging by path is broken and may not always work!!!

Calculating dependencies
!!! '/root/ktorrent-2.0_beta1.ebuild is not in a valid portage tree hierarchy or does not exist'

eamon-desktop ~ # ebuild ktorrent-2.0_beta1.ebuild
Usage: ebuild <ebuild file> <command> [command] ...

See the ebuild(1) man page for more info
eamon-desktop ~ # ebuild ktorrent-2.0_beta1.ebuild install
Appending  to PORTDIR_OVERLAY...
!!!  does not seem to have a valid PORTDIR structure.
eamon-desktop ~ #